Solar Physics

, Volume 210, Issue 1, pp 33–60

The RHESSI Spectrometer

  • D.M. Smith
  • R.P. Lin
  • P. Turin
  • D.W. Curtis
  • J.H. Primbsch
  • R.D. Campbell
  • R. Abiad
  • P. Schroeder
  • C.P. Cork
  • E.L. Hull
  • D.A. Landis
  • N.W. Madden
  • D. Malone
  • R.H. Pehl
  • T. Raudorf
  • P. Sangsingkeow
  • R. Boyle
  • I.S. Banks
  • K. Shirey
  • Richard Schwartz
Article

DOI: 10.1023/A:1022400716414

Cite this article as:
Smith, D., Lin, R., Turin, P. et al. Sol Phys (2002) 210: 33. doi:10.1023/A:1022400716414

Abstract

RHESSI observes solar photons over three orders of magnitude in energy (3 keV to 17 MeV) with a single instrument: a set of nine cryogenically cooled coaxial germanium detectors. With their extremely high energy resolution, RHESSI can resolve the line shape of every known solar gamma-ray line except the neutron capture line at 2.223 MeV. High resolution also allows clean separation of thermal and non-thermal hard X-rays and the accurate measurement of even extremely steep power-law spectra. Detector segmentation, fast signal processing, and two sets of movable attenuators allow RHESSI to make high-quality spectra and images of flares across seven orders of magnitude in intensity. Here we describe the configuration and operation of the RHESSI spectrometer, show early results on in-flight performance, and discuss the principles of spectroscopic data analysis used by the RHESSI software.

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • D.M. Smith
    • 1
  • R.P. Lin
    • 1
  • P. Turin
    • 1
  • D.W. Curtis
    • 1
  • J.H. Primbsch
    • 1
  • R.D. Campbell
    • 1
  • R. Abiad
    • 1
  • P. Schroeder
    • 1
  • C.P. Cork
    • 2
  • E.L. Hull
    • 2
  • D.A. Landis
    • 2
  • N.W. Madden
    • 2
  • D. Malone
    • 2
  • R.H. Pehl
    • 2
  • T. Raudorf
    • 3
  • P. Sangsingkeow
    • 3
  • R. Boyle
    • 4
  • I.S. Banks
    • 4
  • K. Shirey
    • 4
  • Richard Schwartz
    • 5
  1. 1.Space Sciences LaboratoryUniversity of CaliforniaBerkeleyU.S.A
  2. 2.Lawrence Berkeley National LaboratoryU.S.A
  3. 3.ORTECU.S.A
  4. 4.NASA Goddard Space Flight CenterU.S.A
  5. 5.NASA Goddard Space Flight Center/SSAIU.S.A

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